Transporting residue of vehicle position data via wireless network

1. A method for transporting residue of vehicle position data via a wireless network, comprising the steps of: receiving, by a processor in a vehicle-mounted terminal in a vehicle, data for updating residue encoding schema from a monitor server via the wireless network; calculating, by the processor, a probability of occurrence of a residue of the vehicle in which the vehicle-mounted terminal is located based on a first value and a second value received from the monitor server that characterizes a normal residue distribution of position data of all vehicles complying with a constraint condition; constructing, by the processor, a residue encoding schema based on the probability of occurrence of the residue, thereby producing a constructed residue encoding schema; storing, by the processor, the constructed residue encoding schema such that the constructed residue encoding schema will become a current residue encoding schema; and transmitting, by the processor, codes from the vehicle-mounted terminal in the vehicle to the monitor server using the current residue encoding schema thereby reducing a total length of the codes transmitted via the wireless network; wherein: the constructed residue encoding schema is constructed such that each residue of the constructed residue encoding schema corresponds to one code; and the constructed residue encoding schema is constructed such that a residue having a relatively high probability of occurrence corresponds to a code of relatively short length.

2. The method of claim 1 , wherein the first value is a mean value and wherein the second value is a standard deviation, which characterizes the normalized residue distribution.

3. The method of claim 2 , wherein the constructing of the residue encoding schema further comprises: deriving, by the processor, a sampling time interval based residue distribution of the vehicle, which the vehicle-mounted terminal is located within, based on the mean value and the standard deviation; and calculating, by the processor, the probability of occurrence of the residue according to the sampling time interval based residue distribution.

4. The method of claim 1 , further comprising: selecting, by the processor, code, which corresponds to a residue, according to the current residue encoding schema if code for the residue needs to be sent.